Engine-CodesMercury – B1353 Mercury

B1353 Mercury Code - Ignition Key-In Circuit Open

Quick Answer

The B1353 diagnostic trouble code (DTC) for Mercury vehicles indicates an open circuit in the ignition key-in circuit. Common causes include Faulty wiring in the ignition key-in circuit, Defective ignition switch, Malfunctioning key cylinder. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
B1353 Mercury indicates Ignition Key-In Circuit Open.
Common causes
Common causes include Faulty wiring in the ignition key-in circuit, Defective ignition switch, Malfunctioning key cylinder.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code B1353 Mercury Description

The B1353 diagnostic trouble code (DTC) for Mercury vehicles indicates an open circuit in the ignition key-in circuit. This means that the vehicle's computer is not receiving the proper signal from the ignition key when it is inserted into the ignition switch. The ignition key-in circuit is crucial for the proper operation of the vehicle's starting system, as it allows the engine to start only when the correct key is inserted.

OBDII Code B1353 Mercury - Ignition Key-In Circuit Open
B1353 Mercury Code - Ignition Key-In Circuit Open

Common Causes of B1353 Mercury

  1. Faulty wiring in the ignition key-in circuit
  2. Defective ignition switch
  3. Malfunctioning key cylinder
  4. Issue with the vehicle's computer system

Symptoms of B1353 Mercury

  1. Difficulty starting the vehicle
  2. Intermittent starting problems
  3. Vehicle stalling while driving
  4. Inability to start the vehicle

How to Fix B1353 Mercury

  1. Begin by inspecting the wiring in the ignition key-in circuit to check for any visible damage or corrosion. Repair or replace any damaged wiring as needed.
  2. Test the ignition switch and key cylinder to determine if they are functioning properly. Replace any components that are found to be faulty.
  3. Check the vehicle's computer system for any error codes related to the ignition key-in circuit open code. Clear any codes and retest the system to see if the issue has been resolved.
  4. If the problem persists, consult a professional mechanic or dealership for further diagnosis and repair. They may need to perform more in-depth testing to pinpoint the exact cause of the issue.

Cost to Fix B1353 Mercury

The cost of repairing an ignition key-in circuit open issue can vary depending on the specific cause of the problem and the extent of the repairs needed. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total cost of repairing this issue could be anywhere from $150 to $500, depending on the specific circumstances.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B1353 Mercury Code

1. What does the OBDII code B1353 mean on a Mercury?

The B1353 code indicates an open circuit in the ignition key-in switch, which is part of the vehicle's ignition system.

2. What are the symptoms of the B1353 code on a Mercury?

Symptoms may include the key chime not sounding when the key is in the ignition, failure of certain electronic functions, or the vehicle not recognizing the key-in status.

3. What causes the B1353 code to appear on a Mercury?

Common causes include a faulty ignition key-in switch, damaged wiring, or a poor electrical connection in the ignition circuit.

4. How do I diagnose the B1353 code on a Mercury?

Start by inspecting the ignition key-in switch, checking for damaged or frayed wiring, and testing for continuity in the circuit using a multimeter.

5. Can I still drive my Mercury with the B1353 code active?

Yes, the vehicle may still be drivable, but certain functions like key chime alerts or other ignition-related features may not work properly.

6. How can I fix the B1353 code on a Mercury?

Repairs may include replacing the ignition key-in switch, repairing or replacing damaged wiring, or cleaning and securing poor electrical connections.

7. What tools do I need to repair the B1353 code on a Mercury?

You may need a multimeter, basic hand tools, electrical tape, and potentially a replacement ignition key-in switch.

8. How much does it cost to fix the B1353 code on a Mercury?

Repair costs vary but typically range from $50 to $200, depending on whether you replace the ignition key-in switch or repair the wiring.

9. Can a dead battery cause the B1353 code on a Mercury?

No, a dead battery is not a typical cause of this code, as it specifically relates to an open circuit in the ignition key-in switch.

10. Do I need a professional mechanic to fix the B1353 code on a Mercury?

If you're comfortable with basic electrical diagnostics and repairs, you can attempt to fix it yourself. Otherwise, a professional mechanic can ensure the issue is resolved correctly.

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